Corrugated metallic wall plate



June 19, 1928.

A. E. SMALL CORRUGATED -METALLIC WALL PLATE Filed Aug. 50, 1926 Ey? my. 9

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that the wall is very strongl adjacent the side walls ot the car and very elastic adjacent the middle ot the car.

Figs. 7 to l0 inclusive are sections on lines T, S, 9 and l0, respectively, with the parts of the car omitted. Numeral l is the plate;

the plane ot the plate; 5 is the major corrngation that forms the principal stitliening and rigidiiying element.; (S is the valley termed between the major corrugations; T is the minor corrugation that sets within the major corrugation S is the extremity ot the corrugation and 9 is the tlat apex of the major corrugation.

The major eorrugations are relatively deeper adjacent their ends and decrease in depth toward their middle and are also preferably relatively narrow adjacent their ends and increase in width toward their middle. In the preferred form the line of minimum depth is near the line ot maximum width.

Fig. 3 shows a modified 'form wherein the corrugation is deeper adjacent its lower end than adjacent its upper end and the minor corruliation is ot' constant. depth the major portion olf itsl length.

'l'he construction may also be described as a plurality of corrugations which merge into each other adjacent their ends. These corrugations are spaced apart distances equal to their width so as to form a synnnetrical cross section about a line n'lidway between their outermost portions, thereby obtainingr the maximum amount ot strength tor a minimum amount ot steel in the plate. The merced ends form a corrugation which is preferably relatively wider and deeper and such corrugations (merged ends) are also symmetrical in cross section about, a line midway between their outermost pori ions.

The structure is designed to be formed between dies which move toward cach other in one direction only. tlieretore, to facilitate pressing' by equally distributing' the stretchin;r ot the metal the corrugations are so formed that. the lenfrth ot the center line ot the metal ot every cross section normal to the corrugations are equal. i. e.. between he terminal portions.

The embossments or corrugations are preferably of constant width and depth equi-distant on opposite sides ot' their center to provide die adjustment for different length corrugations.

Wh'ile the corrugations are shown pres ed outwardly. it is understood that the corru gations may be pressed inwardly. or partially inwardly and partially outwardly, from the original plane of the plate. The plates or panels may be applied to any type ot railway car.

Metallic plates corrugated as described wherein a plurality of corrugations merge into a contiguous, sinuous and uniform configuration possess the advantage ot great strength and elasticity and (by merging the corrugations together at their extremities) simplifies the termination into the original plane and margins of the plate resultingr in a plate ot comparatively little weight ot maximum strength and one that. is easy to manufacture. Although the figures disclose a plurality ot sinuous corrugations mergingT together, it is to be understood that my invention is not limited to this particular configuration but the corrugations at this point may be ol any cross section.

By thus forming a metallic plate l provide a plurality ot corrugations or beams which cooperate to torm a very strony,r structure capable ot aliisorbingr considerable stress without much deflection and which also form a resilientI structure below the center' ot the corrugations so that when the plate detlects under extreme load it rebounds or returns to its normal position without ap preciable permanent distortion.

This application is confined to the construction wherein the major corrugatitni is split, into two or more minor corrugations, while my application Serial No. aflntl. tiled October lf). 1022, on metal end struts tures tor railway cars covers a construction wherein the minor cm'rugations i'ucrgjc to form the major corrugation.

lVhile the drawings lshown only trio rcin'lorcements in each plate. it is understood that any number ot such reinforccments may be termed in an individual plate or the panel structure may be composed ol' a plurality ot plates secured together. cach ot such plates having one or more such rein forcements formed therein.

The accomipianying' drawinafsl illustrate thc prel'erred i'orm ot the invention. though it is to he understood thatl the invention is not limited to the exact detailsl ol construction shown and described. as it is obvious that arious modifications thereof within the, scope ot the claims will occur to persons skilled in the art.

I claim:

1. A metallic plate provided with a plurality of Corrugations srninictrieal in crof-ma section about a line midway latn'een their outermost portions which merge into eat-h other adjacent their endl to form a plurality of wider corrugations symn'ietrical in eroe: section about a center line midway between their outermost portions. .said corrnmitionf: decreasingT in depth from their endsl toward` their middle portion.

2. A metallic plate provided with a plurality of corrugations spaced apart distamrcrwl substantially equal to their width. .said corrugations mergingr adjacent the ends ot the plate into a lesser number ot eorrngation: spaced apart distances substantially equal to their width, said corrugations decreasing in litt) llO ier

aereas@ `depth from their ends towardv their middle portion.

A metallic plate provided with aplurality of corrugations spaced apart dis tances substantially equal to `their width, said cori'ugations merging adjacent the ends ot the plate into a lesser number of wider corrugations spacedfapart distances substantiallyfequal to their width, said corrugationsj.

decreasing in depth from their ends toward their middle portion.`

`into a lesser number of corrugations, said corrugations decreasing in depth from their ends toward their middle portion.

ii metallic plate wall element provided with a. plurality of corrugations which merge into each otherv adjacent their ends into a lesser number of wider corrugations, said corrugations decreasingT in depth from their ends toward their middle portion.

7. A metallic plate wall element provided with a plurality of corrugatons which merge into each other adjacent their ends intoa lesser number ot wider corrugations,y

said corrugatioiis decreasing in depth 'from their ends toward their middle portion, the

length ot' the center line of the metal being,

equal at every cross section ot the corrugated portion of vtheplate normal to the corrugations. f

8. A metallic plate provided with a plurality ot reinforcements comprising a plurality ot shallow stilifeiiing ribs which merge into each other adjacent the ends of said reintorceinents to form a plurality of deeper sti'tliening ribs, the length of the center line ot the metal ot the cross sectionot the shallow corrugations being substantially equal to the length of the center-line of the metal ot the cross section ot the deeper corrugations.

9. A metallic plate provided with a plurality ot' corrugations spaced apart distances substantially equal to their width, said corrugations merging adjacent the. ends ofthe `plate into a lesser number of wider and deeper corrugations spaced apart distances `substantially equal to their width;

. l0. A metallic plate provided with a plurallityiof corrugations merging adjacent the ends' of the plate into a lesser number of j wider Vand deeper corrugations. v j

li. In a railway car structure, a metallic `plate formedwith aplurality oltlcoirugations which have their middle. portions divided so as to provide a relatively rigid structure adjacent the ends of the corrugations and a relatively resilient structure adacent the middle of the corrugations.

l2; In a railway car structure, a metallic plate formed with a. plurality ot corrugations which have their middle portions divided so as to-provide a relatively rigid structure adjacent the ends of the corrugations which gradually becomes a relatively resilient structure adjacent the middle of the corrugations. j i

13." In a railway car structure, a metallic plate 'formed with a plurality of corrugal tions which are relatively deep adjacent their end portions, said corrugations having their middle portions divided to form a f greater number of relatively shallow corru-y gations adjacent their middle portions so as to provide a relatively rigid structure adjacent the end of the corrugationsand a relatively resilient structure adjacent the middle oi the cori'ugations. i

lli. In a railway cai' structure, a metallic plate toi-ined with a. plurality ofcoi'rugations which are relativelyideep adjacent their end portions, said cori'ugations having their middle portions divided to form a greater numbei` ot' relatively shallow coriugations adjacent their middle portion so as to provide a relatively rigid structure adjacent the end ot the corrugations which gradually becomes a relatively resilient structure adjacent the middle oi'v the corrugations. c

15. In a railway car structure, a metallic plate formed with a plurality ot corrugan tions which yare relatively deep and rela` tively wide adjacent their end portions, said corrugations having their middle portions divided to form a. greater number of relatively shallow and relatively narrow corrugations adjacent their middle portions so as toprovide a relatively rigid structure adj acent the end ot the corrugations and a relatively resilient structure adjacent the middle ot the corrugations. j

iti. ln a railway car structure, a metallic plate formed with a plurality of corrugations which are relatively deep and relative-` ly wide adjacenttheir end portions, said corrugations having their middle portions divided to form a greater number oit relatively .shallow and relatively narrow corrugations adjacent their middle portions so as to provide a relatively rigid structure adjacent ythe end ot the corrugations which gradually becomes a relatively resilient structure. adjacent the middle of thecorrugations.

1i'. A wall tor a railway car comprising a metallic plate secured to oppositely disposed ramemenibeis of the car, saidy plate provided with a plurality of oorrugations merging into each other and terminating into the plate radjacent said, oppositely dislill) ico posed frame members to form a lesser number of corrugations.

18. A wall for a railway car comprising a metallic plate secured to oppositely disposed trame members of the car, said plate pro vided with a plurality of corrugations merging into each other and terminating into the plate adjacent said oppositely disposed frame members to form a lesser number of wider corrngations.

1f). A wall for a railway car comprising a metallic plate secured to oppositcly disposed frame members of the car, said plate provided with a plurality of corrugations merging into each other and terminating into the plate adjacent said oppositely disposed frame members to form a. lesser number of wider and deeper corrugations.

20. A wall for a. railway ear comprising a metallic plate secured to oppositely disposed frame members of the car, said plate provided with a plurality of corrugations spaced apart distances substantially equal to their width, said corrugations merging into lach other and tern'iinating into the plate adjacent said oppositely disposed frame members to form a lesser number of corrugations spaced apart distances substantially equal to their width.

21. A wall ior a railway car comprising a metallic plate secured to oppositely disposed frame members of the car, said plate provided with a plurality of corrugations spaced apart distances substantially equal to their width, said corrugations merging into each other and terminating into the plate adjacent said oppositely disposed 'frame members to form a lesser number of wider corrugations spaced apart distances substantially equal to their width.

22. A wall tor a railway car comprising a metallic plate secured to oppositely disposed `trame members ol: the car, said plate provided with a plurality of corrugations spaced apart distances substantially equal to their width` said corrugations merging into each other and terminating into the plate adjacent .said oppositely disposed frame members to form a lesser number of wider and deeper corrugat-ions spaced apart distances substantially equal to their width.

A wall for a railway car comprising a metallic plate secured to oppositely disposed frame members ot the car. said plate provided. with a plurality of corrugations symmetrical in cross section about a line midway between the outermost portions of the corrugations. said corrugations merging into each other and terminating into the plate adjacent their oppositely disposed frame members to form a lesser number of corrugations symmetrical in cross section about a line midway between the outermost portions of the corrugations.

24. A wall for a railway car comprising a metallic plate secured to oppositely disposed frame members ot' the car, said plate provided with a plurality ot corrugations symmetrical in cross section about a line midway between the outermost portions of the corrugations, said corrugations merging into each other and terminating into the plate adjacent their oppositely disposed frame members to form a lesser number of wider corrngations symn'ict-rical in cross section about a line midway between the outermost portions oi the corrugations.

25. A wall tor a railway car comprising a metallic plate .secured to oppositely disposed trame members ot the car, said plate provided with a plurality ol' corrugations symmetrical in cross section about a line midway between the outermost portions ot the corrugations, said corrugations merging into cach other and terminating into the plate adjacent their oppositely disposed lframe members to form a lesser number of wider and deeper corrugations symmetrical in cross section about a line midway between the outermost portions of the corrugations.

2G. A wall for a railway car comprising a metallic plate secured to oppositely disposed Al'rame members ot the car, said plate provided with a plurality oi corrugations merging into each other and terniinating into the plate adjacent said oppositely disposed irame members to li'orm a lesser number of deeper corrugations, the length of the center line of the metal of a cross section of the shallowcr corrugations being substantially equal to the length ofthe center line oi`A the metal of a cross section of' the deeper corrugations.

27. A wall for a railway car coi'nprising a metallic plate secured to oppositely disposed frame members ot the, rar, said plate provided with a plurality of corrugations merging into each other and terminating into the plate adjacent said oppositely disposed l'rame members to Aform a lesser number ol wider and deeper corrugations, the length of the center line of' the metal of a cross section of the shallower corrugations being substantially equal to the length ol the center line ot' the metal ot a cross section of the deeper corrugations.

Q8. A all for a railway car comprisii'lg a metallic plate secured to oppositely disposed frame members of the car, said plate provided with a plurality of continuous sinuous corrugations merging into each other and terminating` into the plate adjacent said oppositely disposed frame members to form a lesser number of corrugations with substantially flat apices.

29. A wall for a railway car comprising a metallic` plate secured to oppositely disposed frame members of the car, said plate provided with a plurality of contiguous sinuous corrugations merging into each other and terminating into the plate adjacent said op positely disposed frame members to form va lesser number of Wider eol'rugations with substantially flat apces.

BO. A wall for a railway oai` comprising a metallic plate secured to oppositely disposed frame members of the Car, .said plate provided with a plurality of contiguous sinuous eoriugations merging into each other and teiminatinginto the plate adjacent said oppositely disposed frame members to form a lesser number of Wider and deepei` cori-ugationsl With substantially flat apices.

' ARTHUR E. SMALL. 

